Back when Central Avenue was the retail center of town.
From Retiring Guy's postcard collection
City bumps parking rates 50 cents to $1 an hour. (Great Falls Tribune, 5/21/2019)
The City Commission voted 4-1 to raise the hourly downtown parking meter rate by 50 cents to $1, over the objections of downtown business owners who argued it would drive away customers from the city's core business district.
What's wrong with Great Falls? (City-Data.com)